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MAX77178EWC+

更新时间： 2024-02-06 18:16:26
品牌 Logo 应用领域
美信 - MAXIM 开关
页数 文件大小 规格书
17页 2812K
描述
Switching Regulator

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中文翻译

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MAX77178EWC+ 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete包装说明：,
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.84
模拟集成电路 - 其他类型：SWITCHING REGULATOR湿度敏感等级：1
峰值回流温度（摄氏度）：NOT SPECIFIED处于峰值回流温度下的最长时间：NOT SPECIFIED
Base Number Matches：1

MAX77178EWC+ 数据手册

 浏览型号MAX77178EWC+的Datasheet PDF文件第2页浏览型号MAX77178EWC+的Datasheet PDF文件第3页浏览型号MAX77178EWC+的Datasheet PDF文件第4页浏览型号MAX77178EWC+的Datasheet PDF文件第5页浏览型号MAX77178EWC+的Datasheet PDF文件第6页浏览型号MAX77178EWC+的Datasheet PDF文件第7页 
EVALUATION KIT AVAILABLE  
MAX77178/MAX77179  
High-Bandwidth LTE/WCDMA PA Power Management ICs  
in a 1.75mm x 1.4mm, 0.4mm Pitch WLP  
General Description  
Features  
S Meet 3G/4G Timing and RF Spectrum Mask  
The MAX77178/MAX77179 step-down converters are  
optimized for powering the power amplifier (PA) in mul-  
timode/multiband handsets for 3G/4G applications such  
as LTE, WCDMA, as well as other RF PA applications  
such as Wi-FiM and WiMAXM.  
Requirements  
20µs (typ) Settling Time for 0.5V to 3.4V Output  
Voltage Change  
30µs (typ) Settling from Enable to 95% Output  
Voltage Regulation  
S Four Selectable Output Voltages with Logic Inputs  
The 2.5V to 5.5V input supply range supports both current  
and future battery chemistries. The MAX77179 uses an  
analog input driven by an external DAC to control the output  
voltage linearly for continuous PA power adjustment. The  
(MAX77178 Only)  
S Analog Controlled Output Voltage Settings from  
0.5V to V (MAX77179 Only)  
IN  
output voltage range (0.5V to V ) supports operation with  
S 1A Peak Output Current Capability  
IN  
a wide variety of PAs. The MAX77178 uses a 2-bit GPIO  
interface with four selectable output voltage options to  
control the output voltage supply for PA power adjustment.  
S
3% Output Voltage Accuracy  
S Allows Use of Small (1210) 0.47µH Inductor  
S 100% Duty-Cycle Operation  
Fast switching frequency (8MHz, typ) allows the use of  
low value inductor and small ceramic output capaci-  
tors while maintaining low-ripple voltage. Efficiency  
is enhanced at light loads by switching to skip mode  
where the converter switches only as needed to service  
the load. Adaptive smart FET scaling further improves  
efficiency under all operating conditions.  
S Simple Logic On/Off Controls  
S < 1µA Shutdown Supply Current  
S 2.5V to 5.5V Supply Voltage Range  
S Overcurrent and Overtemperature Protection  
Applications  
Other features include overcurrent and overtemperature  
protection, and a very low-current (0.1µA, typ) shutdown  
mode.  
LTE, WCDMA Cell Phones/Smartphones/Tablets/  
Data Cards  
Ordering Information appears at end of data sheet.  
WiMAX is a registered certification mark and service mark of  
WiMAX Forum.  
For related parts and recommended products to use with this part,  
refer to www.maximintegrated.com/MAX77178.related.  
Wi-Fi is a registered certification mark of Wi-Fi Alliance  
Corporation.  
Typical Operating Circuit  
V
IN  
V
IN  
IN3  
IN1  
IN2  
C1  
0.1µF  
C2  
4.7µF  
C4  
1µF  
MAX77178  
MAX77179  
(REF)  
0.47µH  
V
OUT  
SEL0 (MODE_SEL)  
SEL1 (BYP)  
EN  
LX  
C3  
4.7µF  
C5  
0.1µF  
PGND  
FB  
AGND  
GSNS  
NOTE: ( ) FOR MAX77179  
For pricing, delivery, and ordering information, please contact Maxim Direct  
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.  
19-6405; Rev 0; 3/13  
1234567...17

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